XXXIV 
Title Index 
Nature, 
August 11, 1923 

Colour: and Methods of Colour Reproduction, Dr. L. C. 
Martin, with chapters on Colour Printing and Colour 
Photography, by W. Gamble, 799; Blindness, a New 
Method of Investigating, Dr. R. A. Houstoun and 
W. H. Manson, 795; Industry, The Synthetic, 212 ; 
Inheritance in Seeds and Flowers, I. Nagai, Dr. S. 
Ikeno, K. Miyake, and Y. Imai, 373; Photography, 
Practical, E. J. Wall, 531; Technology, The Physical 
Basis of, M. Luckiesh, 545; Temperature and Bright- 
ness of Moonlight, Dr. W. E. Forsythe, 533; Vision: 
a Discussion of the Leading Phenomena and _ their 
Physical Laws, Prof. W. Peddie, 799; and Colour 
Vision Theories, 799; in Lower Animals, A Direct 
Method of Testing, W. F. Hamilton, 207 
Coloured Bows and Glories, The Formation of, B. B. Ray, 
183 
Colours, The Fading of, Sir Sidney Harmer, 130 
Comet, Announcement of a New, W. N. Abbott, 857 
Comets, Astrology of, 179 
Compressibility, Internal Pressure, and Atomic Magni- 
tudes, T. W. Richards, 763 
Concilium Bibliographicum, The, Dr. J. Strohl, L. B. 
Prout, and G. Talbot, 880 
Concrete: and Reinforced Concrete, W. N. Twelvetrees, 
78; Reinforced, a Practical Handbook for use in 
Design and Construction, R. J. H. Hudson, 630 
Condenser Corrosion, Bacteria and, R. Grant, E. Bate, and 
W. H. Myers, 236 
Conjoint Board of Scientific Societies, Dissolved, 438; Sir 
Herbert Jackson and Prof. W. W. Watts, 706 
Consciousness, Primary and Secondary, May Sinclair, 309 
Contact-Metamorphism in the Comrie Area of the Perth- 
shire Highlands, C. E. Tilley, 902 
Continental: Drift, Hypotheses of, Dr. H. Jeffreys, 495 ; 
Flotation and Drift, Prof. J. Joly, 79; Dr. H. A. 
Baker, 80 
Copernicus, Polish Celebrations of the 450th Anniversary 
of the Birth of, 515 
Copper: Age in Spain and Portugal, The, M. C. Burkitt, 
563; Oxidation of, and the Reduction of Copper 
Oxide by a New Method, W. G. Palmer, 690 
Coral Reefs, Drowned, South of Japan, Prof. W. M. Davis, 
595 
Cork Formation, Prof. J. H. Priestley and Miss L. M. 
Woffenden, 302 
Corona of 1908, The, and Solar Prominences, J. Evershed, 
785 
CORRESPONDENCE. 
Acquired Characters, the Inheritance of, Breeding Experi- 
ments on, J. T. Cunningham, 702 
Actinium, The Relation of, to Uranium, Dr. A. S. Russell, 
793 
Adsorption and Hemoglobin, Sir W. M. Bayliss, 666 ; 
Prof. A. V. Hill, 843; J. Barcroft; N. K. Adam, 844; 
W. E. L. Brown, 881 
Aegilops, Chromosome Numbers in, Prof. J. Percival, 810 
Age and Area: Hypothesis, The, J. Adams, 114; Dr. 
J. C. Willis, 115; in Biology, W. C. F. Newton, 48; 
in Natural Selection, Dr. H. L. Clark, 150; J. T. 
Cunningham, 287 
Alpha Particles in Gases, Some Interesting Tracks of, 
R. W. Ryan and Prof. W. D. Harkins, 114 
Aluminium and other Metals, Single Crystals of, Prof. 
A. W. Porter, 362; Dr. C. J. Smithells, 601 
Amber and the Dammar of Living Bees, M. Stuart, 83 
Anticyclones, The Cause of, R. M. Deeley, 83, 256, 634; 
Catharine O. Stevens, 150; Major A. H. R. Goldie, 
429, 634; W.H., Dines, 495 
Armaments, Science and, Dr. L. C. 
Dr. J. Weir French, 186 
Aster tripolium on Salt Marshes, H. W. Chapman, 256 
Atmospherics, R, M. Deeley, 362 
Atom? A Static or Dynamic, Dr. N. R. Campbell, 569 
Atomic Number 72, On the Missing Element of, Dr. D. 
Coster and Prof. G. Hevesy, 79; Prof. G. Urbain and 
Prof. A. Dauvillier, 218 
Audibility, Zones of, The High Temperature of the Upper 
Atmosphere as an Explanation of, F. J. W.. Whipple, 187 
Martin, 82, 429; 
Audition, The Mechanism of, F. W. Kranz, 291 
Aurore, Recent, W. B. Housman, 706 
Babylonians, Ancient, A Biochemical Discovery of the, 
L. J. Harris, 326 ' 
“« Baccy-juice,’’ The so-called, in the Waters of the Thames 
Oyster-beds, Dr. J. H. Orton, 773 
Bacillavria pavadoxa, Distribution of the Organ-pipe 
Diatom, F. Chapman, 15 
Balfour, Sir Isaac Bayley, Prof. T. D. A. Cockerell, 150 
Ball Hardness and Scleroscope Hardness, H. O’Neill, 430 
Balmer Series Lines of High Frequency, Photography of, 
Prof. R. Whiddington, 636 
Bergen Museum, The New Marine Biological Research 
Station of the, Prof. A. Brinkmann, 358 Z 
Beryllium Acetate, Basic, Crystal Structure of, Sir W. H. 
Bragg, 532; Dr. N. V. Sidgwick, 809 
Breeding Experiments on the Inheritance of Acquired 
Characters, J. T. Cunningham, 702 
British Association, The Local Handbook of the, T. 
Sheppard, 16 
Broadcasting : Pictures, A Method of, Dr. E. E. Fournier 
d’Albe, 811 ; Transmitter, Sir Oliver Lodge, 13 
Calendar Reform, L. C. W. Bonacina, 289 
Celtium: and Hafnium, On, Dr. D. Coster and Prof. G. 
Hevesy, 462; Lines, On Urbain’s, H. M. Hansen and 
S. Werner, 461 7 
Chloroplasts and Cells, Prof. R. R. Gates, 635 
Cochlea, Mechanism of the, G, Wilkinson, 636; 
H. E. Roaf, 741 
Coloured Bows and Glories, The Formation of, B. B. Ray, 
183 
Concilium Bibliographicum, The, Dr. J. Strohl, 880 
Conjoint Board of Scientific Societies, The Dissolution of 
the, Sir Herbert Jackson and Prof. W. W. Watts, 706 
Continental: Flotation and Drift, Prof. J. Joly, 790; 
Dr. H. A. Baker, 80; Drift, Hypotheses of, Dr. H. 
Jeffreys, 495 
Crystal, Molecular and, Symmetry, T. V. Barker, 632; 
Dr. J. W. Evans; G. Shearer and W. T. Astbury, 740 
Crystals, Unusual, G. H. Martyn, 186 
Cutting Tools, Action of, H.-S. Rowell, 84 
Cyclones, Tropical, Vertical Change of Wind and, S. K. 
Banerji, 668 ; Sir Napier Shaw, 702 
Diabetes, Use of Yeast Extracts in, L. B. Winter and 
W. Smith, 327 
Drayson Paradox, The, A. H. Barley, 291; The Writer 
of the Note, 292 
Echinoderm Larve and their Bearing on Classification, 
Prof. E. W. MacBride, 47, 323; Prof. J. F. Gemmill, 
47; Dr. Th. Mortensen, 322; Dr. F. A. Bather, 397. 
Echinus miliaris, The Breeding Period of, Dr. J, H. 
Orton, 878 
Economics, Science and, W. W. Leisenring, 571, 846; 
St. George Lane Fox Pitt, 670; Prof. F. Soddy, 669 
Eel, The Life-cycle of the, in Relation to Wegener’s 
Hypothesis, Dr. T. W. Fulton, 359; Dr. A. M. Davies, 
Prof. 
496 
Egyptian Water-clocks, Prof. W. M. F. Petrie, 569 
Einstein Paradox, An, Prof. R. W. Genese, 742, 880 
Electron, Positive, Speculation concerning the, Dr. H. H. 
Poole, 15 
Electronic into Electro-magnetic Energy, The Transforma- 
tion of, Dr. J. A. Gray, 878 
Electrons: The Capture of, by Swiftly Moving Alpha 
Particles, Prof. B. Davis, 706; The Release of, by 
X-rays, Prof. S. Russ, 534 
Elements, The Naming of, Dr. N. R. Campbell, 292 
Elvers in Egyptian Waters, The Ascent of, G. W. Paget, 
290 
e/m, The Value of, R. T. Birge, 287 
Erythrocytes, The Hemoglobin Distribution on Surfaces 
of, Prof. B. S. Neuhausen, 16 
Eyes, Divided Composite, Dr. J. “W. H. Harrison, 81; 
A. Mallock, 82 
Fern, Longevity in a, Dr. F. J. Allen, 742 
Ferromagnetic Substances, The Relation of the Critical 
Constants and the True Specific Heat of, Dr. J. R. 
Ashworth, 773 
Fishes, Fourteen Generic Names of, Official List of, Prof. 
C. W. Stiles, 809 
Geber, The Identity of, Prof. J. R. Partington, 219 
a. 
